1Smart sloar charge/discharge controller with user?friendly LCD display, image LCD graphic sign, easy to recognize and read. 2Simple button operation, settable control parameters, you can set flexibly to meet your different application needs. 3Intelligent PWM solar charge controller, system voltage level automatic identification. With charge and discharge safety hours accumulation function, safe to use. 4Automatic temperature compensation, charge and discharge control parameters are adjustable. 5Multiple protection, support battery reverse discharge protection, battery under voltage protection, battery reverse connection protection, overload, short circuit protection.1 xSolar Charge Controller 1 xConnector Lug Item Type: Solar Charge Controller_x000D_Material: PlasticSize: Approx. 130 x 190 x 62mm/5.1 x 7.5 x 2.4in_x000D_Standard: CM5024_x000D_Rated Voltage: 12V/24V Battery Voltage_x000D_Maximum Charge and Discharge Current: 50A_x000D_Solar Panel Input Voltage Range: 18V-800W/36V-1700W_x000D_Load Working Time Setting: 1-24 Hours Adjustable_x000D_Charging Mode: PWM_x000D_Overpressure Protection: 17V/34V_x000D_Full Disconnect: 13.7V/27.4V_x000D_Undervoltage Disconnection: 10.5V/21V_x000D_Over-Discharge Recovery Voltage: 12.2V/24.4V_x000D_No-Load Loss: 10mA_x000D_Loop Step-Down: 170mV_x000D_Temperature Compensation: -4nv/Cell/C_x000D_Wiring Specification: >3#AWG25mm2_x000D_Working Environment Temperature: -25 - 55 1Smart sloar charge/discharge controller with user?friendly LCD display, image LCD graphic sign, easy to recognize and read. 2Simple button operation, settable control parameters, you can set flexibly to meet your different application needs. 3Intelligent PWM solar charge controller, system voltage level automatic identification. With charge and discharge safety hours accumulation function, safe to use. 4Automatic temperature compensation, charge and discharge control parameters are adjustable. 5Multiple protection, support battery reverse discharge protection, battery under voltage protection, battery reverse connection protection, overload, short circuit protection.1 xSolar Charge Controller 1 xConnector Lug